Scheduling flexible flow lines with sequence-dependent setup times

Mary E. Kurz, Ronald Askin

Research output: Contribution to journalArticle

196 Scopus citations

Abstract

This paper examines scheduling in flexible flow lines with sequence-dependent setup times to minimize makespan. This type of manufacturing environment is found in industries such as printed circuit board and automobile manufacture. An integer program that incorporates these aspects of the problem is formulated and discussed. Because of the difficulty in solving the IP directly, several heuristics are developed, based on greedy methods, flow line methods, the Insertion Heuristic for the Traveling Salesman Problem and the Random Keys Genetic Algorithm. Problem data is generated in order to evaluate the heuristics. The characteristics are chosen to reflect those used by previous researchers. A lower bound has been created in order to evaluate the heuristics, and is itself evaluated. An application of the Random Keys Genetic Algorithm is found to be very effective for the problems examined. Conclusions are then drawn and areas for future research are identified.

Original languageEnglish (US)
Pages (from-to)66-82
Number of pages17
JournalEuropean Journal of Operational Research
Volume159
Issue number1
DOIs
StatePublished - Nov 16 2004

Keywords

  • Flexible flow lines
  • Genetic algorithms
  • Heuristics
  • Scheduling

ASJC Scopus subject areas

  • Computer Science(all)
  • Modeling and Simulation
  • Management Science and Operations Research
  • Information Systems and Management

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